html,body{
    background-color: #f4f4f4;
}
.head-four{
    width:1.3rem;
    height:.88rem;
    line-height:.88rem;
    border-bottom:.05rem solid #333;
    font-size:.3rem;
    color:#333;
    font-weight:600;
    text-align:center;
}
.head-five{
    width:1.3rem;
    height:.88rem;
    line-height:.88rem;
    font-size:.3rem;
    color:#666;
    font-weight:600;
    text-align:center;
}